Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
lua tre » cua tre, luy tre, dua tren
ve cau » ke cau, va cau, le cau
ve cac » va cac, vien cac
vi lua » vi luu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang cao hoi. hieu ((ve cau) or (ve cac)) truc va hanh vi lua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang cao hoi. hieu ((ve cau) OR (ve cac)) truc va hanh vi lua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang cao hoi. hieu ((ve cau) or (ve cac)) truc va hanh vi lua tre*.